Comments on “on the Power Absorbed and Scattered by an Antenna” [Letter to the Editor]

The uniform plane-wave scattering could be relatively easily evaluated. If the more-realistic case where a radar transmitter is located at a large distance is considered, Equation (2) with the illumination of Equation (8) should be numerically evaluated. As examples, results are shown in Figure 1 (scattered field, ∣E
^s
/E
ⁱ
∣) and Figure 2 (the total field, ∣E
^t
/E
ⁱ
∣) for a distance R
0
of 1000λ between the transmitter and the scatterer point. The sphere was in the far field for α > 11 (considering the usual criterion, R
0
> 2D
²
/λ).